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Author Question: Early in the twentieth century, what was the prevailing view of how land animals migrated across ... (Read 54 times)

809779

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on: Jul 14, 2018
Early in the twentieth century, what was the prevailing view of how land animals migrated across vast expanses of open ocean?
 
  What will be an ideal response?

Question 2

Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis.
 
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rekilledagain

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Early views were far-fetched ideas about rafting, land bridges, and island stepping-stones to get from one continent, across an ocean, and onto another continent.

Answer to Question 2

Mesosaurus was a freshwater reptile, and migration between the continents as they are now would have been impossible; however, if they were connected (as in Pangea), then this animal could have easily moved between the two by freshwater river systems.


809779

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Reply #2 on: Jul 14, 2018
Thank you :)


rekilledagain

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Reply #3 on: Jul 14, 2018
Happy to help you


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